Open to opportunities

rajasekar k

@rajasekark

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Full-stack developer skilled in Java, Ruby on Rails, and modern web technologies, delivering scalable web applications.

India

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What I'm looking for

I seek full-stack roles where I can build scalable web applications, work with microservices and real-time systems, collaborate cross-functionally, and continue learning modern backend and DevOps technologies.

I am a full-stack developer with experience building responsive web applications and scalable back-end systems using Java, Spring Boot, Ruby on Rails, PHP and modern front-end frameworks like AngularJS and ReactJS. I have delivered solutions across domains — from CRM and HR systems to real-time data pipelines — while integrating third‑party APIs, implementing secure authentication and optimizing database performance.

I thrive on collaborating with clients and teams to translate requirements into maintainable code, leveraging tools such as Docker, Kafka and Git. My projects include privacy-preserving cloud storage, Kafka-based real-time pipelines, Java microservices for real estate CRM, and multiple end-to-end Java/MySQL and Java/MongoDB systems.

Experience

Work history, roles, and key accomplishments

Web Developer

Self-employed

Jan 2023 - May 2025 (2 years 4 months)

Developed responsive websites and custom web applications for small businesses using Java and Spring Boot, delivering secure integrations and performance enhancements for clients.

Java Spring Boot AngularJS REST APIs Authentication Responsive Design API Integration Performance Optimization

Full Stack Developer

C4i System

Jan 2019 - Jan 2023 (4 years)

Built responsive web applications and custom plugins, working extensively on Ruby on Rails sites and delivering UI/UX and backend logic for client projects.

Ruby on Rails JavaScript HTML5 CSS3 Bootstrap UI UX PostgreSQL

Java Developer

Cre8 Technology

Jan 2017 - Jan 2019 (2 years)

Maintained and enhanced Java-based applications, participated in SQL database design and optimization, and produced technical documentation to support system design.

Java Spring Boot SQL Server MySQL Database Design Performance Tuning Documentation Eclipse

PHP Developer

MG Infotech

Jan 2015 - Jan 2017 (2 years)

Developed web applications using PHP with frontend-backend integration, emphasizing testable, high-availability code and thorough debugging and testing.